v0.2.1 - PG15 support

What's Changed

• PG15 support, improve CI by @xaneets in #3
• up ver, CI Improve by @xaneets in #4

Full Changelog: v0.2.0...v0.2.1

v0.2.0 - know schema functions

What's Changed

• Know schema, fix missing check limit, add examples by @xaneets in #2

Full Changelog: v0.1.0...v0.2.0

v0.1.0 - MVP

• Initial MVP release of pg-debyte
• Core Rust crates for decoding bytea payloads into json
• Macro helpers for typed decoder registration
• pgrx-based example PostgreSQL extension
• Demo tools for generating sample payloads/envelopes
• CI build/test workflow and Docker-based runner